GMC C25 Cab & Chassis 4.1 (1975-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 4.8 (1974-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 5.7 (1975-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 7.4 (1977-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 6.6 (1976-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 5.0 (1976-09-01 - 1978-12-01)

GMC C25 Cab & Chassis 7.4 (1976-09-01 - 1977-12-01)

GMC C25 Cab & Chassis 5.7 (1979-09-01 - 1980-12-01)

GMC C25 Cab & Chassis 7.4 (1975-01-01 - 1978-12-01)